<template>
  <div>
    <van-nav-bar title="登录" />
    <van-form @submit="onSubmit">
      <van-field
        v-model="username"
        name="用户名"
        label="用户名"
        placeholder="用户名"
        :rules="[{ required: true, message: '请填写用户名' }]"
      />
      <van-field
        v-model="password"
        type="password"
        name="密码"
        label="密码"
        placeholder="密码"
        :rules="[{ required: true, message: '请填写密码' }]"
      />
      <div style="margin: 16px">
        <van-button round block type="info" native-type="submit"
          >提交</van-button
        >
      </div>
    </van-form>
  </div>
</template>

<script>
export default {
    data(){
        return{
            username: '',
            password: '',
        }
    },
     methods: {
    async onSubmit(values) {
      const {data:res}=await this.$http.post(this.HOST+'user/checkusername',{username:this.username})
      if(res.code==201){
          console.log('继续登录')
          const {data:res}=await this.$http.post(this.HOST+'user/login',{username:this.username,password:this.password})
          if(res.code==200){
            this.$toast.success('登录成功')
            window.sessionStorage.setItem('username',this.username)
            this.$router.replace('/home')
          }else{
            this.$toast.fail('密码错误，请重新登录')
          }
      }else if(res.code==200){
          this.$toast.fail('用户名不存在，请重新登录')
      }
    },
  },
};
</script>

<style>
</style>